<style>
    body{
        /*height: 2000px;*/
    }
    .demo-affix{
        width: 100px;
        height: 30px;
        background: #f60;
        color: #fff
    }
</style>
<template>
  <div>
    <Affix>
      <div class="demo-affix">
        固定在最顶部
      </div>
    </Affix>
    <div v-for="(item,index) in arr">
      {{ item }}
    </div>
  </div>
</template>
<script>
export default {
  data () {
    return {
      arr: []
    }
  },
  created () {
    for (let i = 0; i < 100; i++) {
      this.arr.push(i)
    }
  }
}
</script>
